I recently reviewed the Kahles.
I was fortunate to have the 1050 and a 60 mag March here at the same time, and I would say the clarity and colour of the March sight picture is superior by a fair bit over the Kahles.
However, the Kahles produces a lot of detail and is easily capable of repeated range finding accurately at any range, and that is without the scale at the bottom.
It is heavier than the 60 or 80 mag March's and the size of the parallax wheel does make it a little difficult to find a gun bag that will accommodate it safely, but Jon Harris has already made some smaller diameter wheels which work perfectly.
The distributor of the Kahles in the UK is RUAG Amotec and the list price is just a touch under £2400.
Nice scope and easy to use.
"I'm your huckleberry, that's just my game"